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  • 2833149

    Wastewater Influent Inorganics Quality Control Standard. Ready to use; no dilutions required. Mixed standard contains: Ammonia Nitrogen 15 mg/L NH3-N, Nitrate Nitrogen 10 mg/L NO3--N, COD: 500 mg/L. P

    更新时间:2026-03-14
    产品型号:
    浏览量:692
  • 2602853

    For accuracy checks in determinations by the Platinum-Cobalt Standard Method. Hach Method 8025. 15 platinum-cobalt units. 1 Liter Bottle

    更新时间:2026-03-14
    产品型号:
    浏览量:1148
  • 257849

    For accuracy checks in sulfate determinations

    更新时间:2026-03-14
    产品型号:
    浏览量:803
  • 2343267

    For spectrophotometer wavelength checks.

    更新时间:2026-03-14
    产品型号:
    浏览量:724
  • 2175749

    For accuracy checks in sulfate determinations

    更新时间:2026-03-14
    产品型号:
    浏览量:779
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